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IR,ESR和XPS的测试结果表明,脱乙酰壳聚糖(简记CS)膜在铜氨水溶液浸渍过程中Cu(Ⅱ)既与CS发生配位反应形成Cu(Ⅱ)-CS配位聚合物,也产生吸附作用.ESR谱示出CuCl_2·2H_2O与Cu(Ⅱ)-CS膜中的Cu(Ⅱ)均含有一个单电子,可以利用XPS的Shake-up效应研究Cu(Ⅱ)-CS配位聚合物的配位数,所得结果为4.又以同样的方法研究Cu(Ⅱ)-聚乙烯醇(简记PVA)配位聚合物的配位数,发现Cu(Ⅱ)是以低自旋状态的dsp~2杂化空轨道与PVA的羟基氧配位,其配位数也是4,这与资料所报道的一致,从而间接地验证了此方法研究Cu(Ⅱ)-CS配位聚合物配位数的可靠性.
The results of IR, ESR and XPS indicated that Cu (Ⅱ) complexed with CS to form Cu (Ⅱ) -CS coordination polymer during the impregnation of Cu (Ⅱ) , And the adsorption was also observed.The ESR spectra showed that Cu (Ⅱ) -CS (Cu (Ⅱ)) in CuCl_2 · 2H_2O and Cu (Ⅱ) contained a single electron and the Cu (Ⅱ) -CS coordination could be studied by the Shake-up effect of XPS Polymer coordination number, the result is 4. In the same way to study Cu (Ⅱ) - polyvinyl alcohol (abbreviated PVA) coordination polymer coordination number and found that Cu (Ⅱ) is a low spin The dsp ~ 2 hybrid empty orbitals coordinated with the hydroxyl groups of PVA, and their coordination number was also 4, which was consistent with that reported in the literature. This proves indirectly that the Cu (Ⅱ) -CS coordination polymer The reliability of the coordination number.